Vida's a week shy of 6 months, and on Friday she weighed 38 pounds, she's about 20 inches from withers to ground when she stands. You can't see her ribs or any of her bones, her coat is super shiny and sleek. I was wondering if this was considered underweight or just a slow grower. She's part DDR working lines, and her dam is about 87 pounds, while her sire is about 96. So, just a slow starter or should I be concerned and start amping up her feeding? She currently eats about 2-2.5 pounds of food a day.